Abstract: In a method for operating an internal combustion engine with intake manifold injection and direct injection, a value of at least one parameter that is correlated with an exhaust gas of a combustion chamber of the internal combustion engine and that is influenced by purging of uncombusted fuel through the combustion chamber into the exhaust gas is ascertained, and, if it is concluded, based on the ascertained value of the at least one parameter, that uncombusted fuel is purged, at least one operating parameter for filling the combustion chamber is adjusted.

Abstract: In a method for operating an internal combustion engine with intake manifold injection and direct injection, a value of at least one parameter that is correlated with an exhaust gas of a combustion chamber of the internal combustion engine and that is influenced by purging of uncombusted fuel through the combustion chamber into the exhaust gas is ascertained, and, if it is concluded, based on the ascertained value of the at least one parameter, that uncombusted fuel is purged, at least one operating parameter for filling the combustion chamber is adjusted.

Abstract: A method for ascertaining a cause of an fault in an injection system of an internal combustion engine having manifold and direct injections as injection types includes, if a fault exists in at least one first combustion process in an injection system associated with a combustion chamber of the internal combustion engine, replacing a first of the two injection types used in the at least one first combustion process with a second of the two injection types in at least one second combustion process, and, identifying the first injection type as the cause responsive to the fault no longer being detected in the second combustion process.

Abstract: A method for detecting a fault during operation of an internal combustion engine having manifold injection and direct injection; the internal combustion engine being controlled in two different combustion cycles, in each instance, for introducing a fuel quantity and a corresponding air quantity into a combustion chamber of the internal combustion engine, with different distributions of the fuel quantity to the manifold injection and the direct injection in the two combustion cycles; for each of the two combustion cycles, a value of a ratio of the air quantity introduced into the combustion chamber to the fuel quantity introduced into the combustion chamber being ascertained; and if at least one of the two values differs from a corresponding comparison value by more than a first threshold value, a type of fault during operation of the internal combustion engine being deduced in light of the difference.

Abstract: A holding fixture for an injection device for the injection of a medium into a combustion chamber of an internal combustion engine is provided, the injection device including an injector provided with at least one spray-discharge orifice, from which the medium is spray-discharged; the holding fixture has a first region disposed near the spray-discharge orifice of the injector, and a second region which faces away from the spray-discharge orifice of the injector, the holding fixture having at least one tubular heat conduction device, which extends at least between the first region and the second region.

Abstract: A holding fixture for an injection device for the injection of a medium into a combustion chamber of an internal combustion engine is provided, the injection device including an injector provided with at least one spray-discharge orifice, from which the medium is spray-discharged; the holding fixture has a first region disposed near the spray-discharge orifice of the injector, and a second region which faces away from the spray-discharge orifice of the injector, the holding fixture having at least one tubular heat conduction device, which extends at least between the first region and the second region.

Abstract: A method and a device for operating an internal combustion engine having a catalytic converter are described making it possible to heat the catalytic converter more quickly. An additional load of the internal combustion engine is applied to heat the catalytic converter.

Abstract: A method and a device for operating an internal combustion engine having a catalytic converter are described making it possible to heat the catalytic converter more quickly. An additional load of the internal combustion engine is applied to heat the catalytic converter.

Abstract: A method and a device for operating an internal combustion engine having a catalytic converter are described making it possible to heat the catalytic converter more quickly. An additional load of the internal combustion engine is applied to heat the catalytic converter.